Reduktion-Module

The core of MORPACK is the reduction-module. A total of 12 basic methods including conventional and modern methods are available. By an appropriate combination (multi-step methods) 6 further methods are possible, leading to minimal models. For the calculation, 8 solvers are available, whereby a suitable solver is proposed depending on the reduction method used.

Features:

• conventional reduction methods (e.g. Guyan, CMS, IRS, SEREP)
  
• modern methods (e.g. Krylov-subspace method, second order balanced truncation)
  
• generation of minimal models by using multi-step methods and mode-truncation
  
• generation of reliable models by application of convergence criteria
  
• methods with semi-automated parameter choice (e.g. Krylov-subspace-method with convergence criterion)
  
• large variety of methods and selections for advanced users as well as optimised standard selections for beginners
  
• back-transformation into physical configuration space for a physical interpretation of the reduced order model
• definition of additional modes (e.g. FRM)